Air dam



FIG. 1 is a perspective view of an air dam showing my new design, itbeing understood that the broken lines are for illustrative purposesonly and form no part of the design;

FIG. 2 is an enlarged front elevation view thereof;

FIG. 3 is an enlarged side elevation view thereof;

FIG. 4 is an enlarged top plan view thereof;

FIG. 5 is an enlarged rear elevation view thereof; and

FIG. 6 is an enlarged bottom plan view thereof.

The ornamental design for an air dam, as shown and described.